Paper Info
Title
Assessing Link Quality In Ieee 802.11 Wireless Networks: Which Is The Right Metric?
Abstract
The accurate determination of the link quality is critical for ensuring that functionalities such as intelligent routing, load-balancing, power control and frequency selection operate efficiently. There are 4 primary metrics for capturing the quality of a wireless link: RSSI (Received Signal Strength Indication), SINR (Signal-to-Interference-plus-Noise Ratio), PDR (Packet-Delivery Ratio), and BER (Bit-Error Rate). In this paper, we perform a measurement-based study in order to answer the question: which is the appropriate metric to use, and under what conditions? We evaluate the relative accuracy of each metric by conducting experiments with multiple transmission rates and varying levels of interference on a large set of links. We observe that each metric has advantages and projects one or more limitations. Our study suggests that a careful consideration of these limitations is essential, and provides guidelines on the applicability of each metric.(1)
Year
DOI
Venue
2008
10.1109/PIMRC.2008.4699837
2008 IEEE 19TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS
Keywords
Field
DocType
IEEE 802.11 Wireless Networks, Measurements, Experimentation, Interference, Network Topology, Testbed
Wireless network,IEEE 802.11,Wireless,Received signal strength indication,Computer science,Signal-to-noise ratio,Power control,Computer network,Network topology,Real-time computing,Signal-to-interference-plus-noise ratio
Conference
Citations 
PageRank 
References 
62
2.14
15
Authors
5
Name
Order
Citations
PageRank
Aggelos Vlavianos1622.14
Lap Kong Law21156.39
Ioannis Broustis342529.27
Srikanth V. Krishnamurthy464561.55
Michalis Faloutsos55288586.88